CA2542260A1 - Antenna coil and antenna device - Google Patents

Antenna coil and antenna device Download PDF

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Publication number
CA2542260A1
CA2542260A1 CA002542260A CA2542260A CA2542260A1 CA 2542260 A1 CA2542260 A1 CA 2542260A1 CA 002542260 A CA002542260 A CA 002542260A CA 2542260 A CA2542260 A CA 2542260A CA 2542260 A1 CA2542260 A1 CA 2542260A1
Authority
CA
Canada
Prior art keywords
core
connection section
antenna coil
main body
hole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002542260A
Other languages
French (fr)
Other versions
CA2542260C (en
Inventor
Hitoshi Moriya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumida Corp
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2542260A1 publication Critical patent/CA2542260A1/en
Application granted granted Critical
Publication of CA2542260C publication Critical patent/CA2542260C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H01Q7/06—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/1207—Supports; Mounting means for fastening a rigid aerial element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/20—Resilient mountings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H01Q1/3208—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used
    • H01Q1/3216—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used where the road or rail vehicle is only used as transportation means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H01Q7/06—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material
    • H01Q7/08—Ferrite rod or like elongated core

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Support Of Aerials (AREA)
  • Details Of Aerials (AREA)

Abstract

An antenna coil includes: a core (3) having a magnetic material formed into a bar shape; a bobbin (1) having a through hole (12) through which the core (3) is inserted; a connection section (15) fixed to the bobbin (1) in such a manner that it extends from the bobbin (1) in the length direction of the core (3) when the core (3) is inserted into the through hole (12); a winding (14) wound on the bobbin (1) and having a terminal connected to the connection section (15); and a connector terminal (25) arranged at a certain position in the length direction of the core (3) for fixing the connection section (15) and deciding the position of the winding (14) in the length direction of the core (3).

Claims (8)

1. An antenna coil characterized by comprising:
a core formed by shaping a magnetic material into a bar-like configuration;
a bobbin having a through-hole into which the core is to be inserted;
a connection section fixed to the bobbin so as to extend in a length direction of the core from the bobbin, with the core inserted into the through-hole;
a winding which is wound around the bobbin and whose ends are connected to the connection section; and a connector terminal which is provided at a certain position in the length direction of the core, which fixes the connection section in position, and which determines a position of the winding in the length direction of the core.
2. An antenna coil according to Claim 1, characterized in that:
the connector terminal is provided on a connector main body having another through-hole into which the core is to be inserted.
3. An antenna coil according to Claim 2, characterized in that:
the connection section is formed of a rigid material;
a second through-hole is formed in the connector main body so as to extend along the other through-hole; and the connection section is inserted into the second through-hole.
4. An antenna coil according to Claim 2, characterized in that:
a capacitor is provided on the connector main body; and the connector terminal is connected to the capacitor.
5. An antenna coil according to any one of Claims 1 through 4, characterized in that:
the connection section has two conductive rigid members;
one end of the winding is connected to one rigid member of the connection section;
another end of the winding is connected to another rigid member of the connection section;
the connector terminal has two conductive joint portions;
one joint portion of the connector terminal fixes in position the rigid member of the connection section to which the one end of the winding is connected; and another joint portion of the connector terminal fixes in position the rigid member of the connection section to which the another end of the winding is connected.
6. An antenna device characterized by comprising:
an antenna coil according to any one of Claims 1 through 5;

a holder having an accommodating portion formed by a holder main body and a side surface portion provided upright on the holder main body, with the accommodating portion accommodating the antenna coil; and a cover for hermetically sealing the accommodating portion.
7. An antenna device according to Claim 6, characterized in that:
the connector terminal of the antenna coil is provided on a connector main body having another through-hole into which the core is to be inserted; and the side surface portion and the connector main body of the antenna coil respectively have engagement portions engaged with each other and determining a position of the connector main body in a length direction of the core.
8 . An antenna device according to Claim 7, further comprising two cushion members having through-holes into which the core of the antenna coil is inserted and higher than a depth of the accommodating portion, characterized in that an engagement member provided on the cover is inserted into a through-hole formed in the holder main body, whereby the cover hermetically seals the accommodating portion.
CA002542260A 2003-10-16 2004-10-07 Antenna coil and antenna device Expired - Fee Related CA2542260C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2003355937 2003-10-16
JP2003-355937 2003-10-16
PCT/JP2004/015187 WO2005038982A1 (en) 2003-10-16 2004-10-07 Antenna coil and antenna device

Publications (2)

Publication Number Publication Date
CA2542260A1 true CA2542260A1 (en) 2005-04-28
CA2542260C CA2542260C (en) 2009-12-22

Family

ID=34463181

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002542260A Expired - Fee Related CA2542260C (en) 2003-10-16 2004-10-07 Antenna coil and antenna device

Country Status (9)

Country Link
US (1) US7427963B2 (en)
EP (1) EP1684380B1 (en)
JP (1) JP4134173B2 (en)
KR (1) KR100703147B1 (en)
CN (1) CN1868090B (en)
CA (1) CA2542260C (en)
RU (1) RU2321926C2 (en)
TW (1) TWI281288B (en)
WO (1) WO2005038982A1 (en)

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US7557763B2 (en) * 2005-10-18 2009-07-07 Continental Automotive Systems Us, Inc. Housing mounted Z-axis antenna coil
JP4694394B2 (en) * 2006-03-20 2011-06-08 ミツミ電機株式会社 In-vehicle composite antenna device
GB0706073D0 (en) * 2007-03-28 2007-05-09 The Technology Partnership Plc Antenna
JP4917525B2 (en) * 2007-12-19 2012-04-18 株式会社東海理化電機製作所 Resin member fitting structure and vehicle interior antenna device
US9441676B2 (en) * 2011-07-01 2016-09-13 Ntn Corporation Bearing assembly including IC tag
KR101345698B1 (en) * 2012-07-09 2013-12-26 콘티넨탈 오토모티브 시스템 주식회사 Method for producting antenna of card type smart key using vehicle
JP2014107692A (en) * 2012-11-27 2014-06-09 Tokai Rika Co Ltd Antenna device
JP2014107691A (en) * 2012-11-27 2014-06-09 Tokai Rika Co Ltd Antenna device
JP6229305B2 (en) * 2013-05-17 2017-11-15 スミダコーポレーション株式会社 ANTENNA DEVICE AND ANTENNA DEVICE MANUFACTURING METHOD
JP6186907B2 (en) * 2013-06-06 2017-08-30 スミダコーポレーション株式会社 Antenna coil device
US9768509B2 (en) * 2013-08-09 2017-09-19 Sumida Corporation Antenna coil component, antenna unit, and method of manufacturing the antenna coil component
RU2546542C1 (en) * 2013-10-04 2015-04-10 Общество с ограниченной ответственностью "Алсет Веллен" Controlled preselector integrated with magnetic ferrite antenna
KR20160072198A (en) * 2013-11-18 2016-06-22 가부시키가이샤 리코 Method of manufacturing coil antenna and method of manufacturing coil antenna package
JP6364906B2 (en) * 2014-04-15 2018-08-01 スミダコーポレーション株式会社 ANTENNA DEVICE AND ANTENNA DEVICE MANUFACTURING METHOD
JP6437227B2 (en) * 2014-07-18 2018-12-12 株式会社ヨコオ In-vehicle antenna device
US9653786B2 (en) * 2015-06-27 2017-05-16 Intel Corporation Wearable antenna system
KR101762040B1 (en) * 2015-07-27 2017-07-26 삼성전기주식회사 Chip antenna and method manufacturing the same
JP6280898B2 (en) 2015-08-26 2018-02-14 株式会社東海理化電機製作所 Antenna device
JP6572720B2 (en) * 2015-10-13 2019-09-11 スミダコーポレーション株式会社 ANTENNA DEVICE AND ANTENNA DEVICE MANUFACTURING METHOD
JP2017103549A (en) 2015-11-30 2017-06-08 スミダコーポレーション株式会社 Antenna device and method of manufacturing the same
JP6700585B2 (en) * 2016-02-29 2020-05-27 アイシン精機株式会社 Antenna module
JP6847752B2 (en) * 2017-04-27 2021-03-24 株式会社ユーシン Antenna device, door handle equipped with it, moving body
JP6645622B2 (en) * 2017-05-25 2020-02-14 株式会社村田製作所 Antenna device
DE112018002715T5 (en) * 2017-05-26 2020-02-13 Murata Manufacturing Co., Ltd. antenna coil
JP7120602B2 (en) * 2018-04-09 2022-08-17 東京パーツ工業株式会社 Antenna coil and antenna device
CN111430922B (en) * 2020-04-20 2022-09-13 胜美达电机（香港）有限公司 Antenna device and method for manufacturing the same
EP3916910B1 (en) * 2020-05-26 2022-12-14 Premo, S.A. Long range low frequency antenna
CN112164856B (en) * 2020-08-13 2024-05-28 中国石油天然气集团有限公司 Directional antenna skeleton structure and three-degree-of-freedom frame type winding tool
CN113690008B (en) * 2021-08-26 2024-03-08 南京金惠凯电子科技有限公司 Frameless magnetic bar device and production process thereof

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Also Published As

Publication number Publication date
US20070075913A1 (en) 2007-04-05
US7427963B2 (en) 2008-09-23
CA2542260C (en) 2009-12-22
TWI281288B (en) 2007-05-11
CN1868090A (en) 2006-11-22
TW200518388A (en) 2005-06-01
EP1684380A4 (en) 2006-11-29
RU2006116566A (en) 2008-01-20
KR100703147B1 (en) 2007-04-09
JP4134173B2 (en) 2008-08-13
KR20060069498A (en) 2006-06-21
CN1868090B (en) 2012-07-25
EP1684380B1 (en) 2012-05-23
EP1684380A1 (en) 2006-07-26
RU2321926C2 (en) 2008-04-10
WO2005038982A1 (en) 2005-04-28
JPWO2005038982A1 (en) 2007-02-08

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MKLA Lapsed

Effective date: 20171010